The reconstruction uses Babylonian measurement practices

The annual observance uses 14 March, associated with the decimal digits 3.14, to promote mathematics worldwide.

Activities connect the discipline with health, climate, technology, culture, industry and sustainable development.

Schools and institutions can use the day to feature Indigenous, African, Asian, Islamic, Latin American and women's contributions.

Celebration alone does not remove unequal schooling, language barriers, digital divides or the concentration of research funding.

Published on 26 December 2021, the paper proposes that ratios on Plimpton 322 operated like a systematic trigonometric table.

The record distinguishes the paper's claim from scholarly consensus because the tablet's purpose remains debated.

Changing interpretations show how modern categories influence what historians believe ancient practitioners were doing.

A paper dated 10 July 2022 links the Moscow Papyrus formula for a truncated pyramid with Liu Hui's geometric reasoning.

Problem 14 of the Moscow Papyrus preserves an exact rule for a difficult solid-geometry problem.

The Chinese mathematician's dissection arguments suggest ways ancient practitioners could understand such formulas without Euclidean proof.